正如DeborahK指出的那样，当我导航到this.router.url时，该URL已经嵌入了url参数.为了解决这个问题，我从字符串中剥离了URL的参数，然后使用navigationByUrl跳到那里.

As DeborahK pointed out, when I was navigating to this.router.url, that URL already had the url params embedded. To solve I stripped the params off the URL as a string, and then used navigateByUrl to jump there.

let url: string = this.router.url.substring(0, this.router.url.indexOf("?"));
this.router.navigateByUrl(url);